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DSU and DSU II Series
Digital Telephone Systems
Non-LCD Station User’s Guide
2
ABC
1 3
DEF
6
MNO
5
JKL
4
GHI
7
PRS
8
TUV
9
WXY
#0*
SPEAKER
MESSAGE
TRNS/CONF
HOLD
MUTE
TAP
R
MUTESHIFT
SPEAKER
INTERCOM
TRNS/CNF
TAP
HOLD
OPER
TUVPRS WXY
DEFABCQZ
MNOJKLGHI
0
87 9
321
#
654
R
MUTE
SHIFT
SPEAKER
INTERCOM
TRNS/CNF
TAPHOLD
OPER
TUVPRS WXY
DEFABCQZ
MNOJKLGHI
0
87 9
321
#
6
5
4
R
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